Removing carbon from Earth's atmosphere may not reverse devastating weather changes in vulnerable regions, a new study suggests. In the study, Korean researchers simulated how the removal of large amounts of greenhouse gas of carbon dioxide from the air to influence the progress of local climate change related to global warming. The study, based on computer modeling, examined a hypothetical scenario in which carbon dioxide concentrations continued to rise from current levels for 140 years, then gradually declined back to initial levels over another 140 years. (Pultarova)